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Digital BW, The Print

Index last updated: 2026-04-28 22:56 UTC

Message

Re: 4800 Colorbase (color issue)

2006-01-16 by Olivier

Greg, thanks for the help.
I have the UV cut spectro. I must admit it acts heratic when it has 
been connected to Colorbase, but a reset gets it in normal 
conditions : I just suspect some kind of weird driver in Colorbase to 
run the spectro but this would not be the main issue since USFA was 
processed just fine to my evaluation.

In fact I read on Luminous Landscape review that the use of Colorbase 
was getting on EEM a denser red output with a GMB package. I'd have 
loved to get a feedback on someone else getting also a kind of wider 
gamut in the magenta area (what I called a "leg +a-b"). I looks so 
weird that I can't believe it, and I guess many use EEM for proofing, 
so they must have had the processing done.

I use Colorshop and colorport so it's not a problem to buid a target, 
it's just that I'm located in France and few people get a spectro (at 
least that I know). So feedback from experienced users would have 
helped. For the drivers unfortunately it looks like they are 
different from countries to countries so you can not really guarantee 
2 users have the same version and Epson France support is very little 
helpful, I was told the firmware and driver on the French site are 
older than the one loaded in my printer !!!???

I'd have liked to get the printer back to its initial calibration 
since this way I suspect I'd get perfect linearization...and of 
course I've got no RIP !!!

Would you have by any chance the calibration target printed once 
calibration is applied on EEM (which is Archival Matte for France) 
and...the reading of the patches (or some of them). In all logics we 
should have the same reading at +/- 1.0 on a and b, right ? This is 
the kind of datas Epson should release so you can assess your 
calibration.

Again thanks for the help.

Olivier

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